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Fix crash on using Space char in font with no font atlases initialized

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This commit is contained in:
Wojtek Figat
2021-03-14 19:01:42 +01:00
parent bdd8242a0f
commit 9ed0138a17
3 changed files with 33 additions and 11 deletions
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3
Source/Engine/Render2D/FontManager.cpp
View File

@@ -109,7 +109,7 @@ void FontManagerService::Dispose()
FontTextureAtlas* FontManager::GetAtlas(int32 index)
{
return Atlases[index];
return index >= 0 && index < Atlases.Count() ? Atlases.Get()[index] : nullptr;
}
bool FontManager::AddNewEntry(Font* font, Char c, FontCharacterEntry& entry)
@@ -206,6 +206,7 @@ bool FontManager::AddNewEntry(Font* font, Char c, FontCharacterEntry& entry)
// End for empty glyphs
if (GlyphImageData.IsEmpty())
{
entry.TextureIndex = MAX_uint8;
if (bitmap == &tmpBitmap)
{
FT_Bitmap_Done(Library, bitmap);

30
Source/Engine/Render2D/Render2D.cpp
View File

@@ -1137,11 +1137,17 @@ void Render2D::DrawText(Font* font, const StringView& text, const Color& color,
// Get texture atlas that contains current character
fontAtlasIndex = entry.TextureIndex;
fontAtlas = FontManager::GetAtlas(fontAtlasIndex);
fontAtlas->EnsureTextureCreated();
drawCall.AsChar.Tex = fontAtlas->GetTexture();
// Cache atlas inverted size (inverted to improve performance)
invAtlasSize = 1.0f / fontAtlas->GetSize();
if (fontAtlas)
{
fontAtlas->EnsureTextureCreated();
drawCall.AsChar.Tex = fontAtlas->GetTexture();
invAtlasSize = 1.0f / fontAtlas->GetSize();
}
else
{
drawCall.AsChar.Tex = nullptr;
invAtlasSize = 1.0f;
}
}
// Check if character is a whitespace
@@ -1250,9 +1256,17 @@ void Render2D::DrawText(Font* font, const StringView& text, const Color& color,
// Get texture atlas that contains current character
fontAtlasIndex = entry.TextureIndex;
fontAtlas = FontManager::GetAtlas(fontAtlasIndex);
fontAtlas->EnsureTextureCreated();
invAtlasSize = 1.0f / fontAtlas->GetSize();
drawCall.AsChar.Tex = fontAtlas->GetTexture();
if (fontAtlas)
{
fontAtlas->EnsureTextureCreated();
invAtlasSize = 1.0f / fontAtlas->GetSize();
drawCall.AsChar.Tex = fontAtlas->GetTexture();
}
else
{
invAtlasSize = 1.0f;
drawCall.AsChar.Tex = nullptr;
}
}
// Get kerning

11
Source/Engine/UI/TextRender.cpp
View File

@@ -177,8 +177,15 @@ void TextRender::UpdateLayout()
// Get texture atlas that contains current character
drawChunk.FontAtlasIndex = entry.TextureIndex;
fontAtlas = FontManager::GetAtlas(drawChunk.FontAtlasIndex);
fontAtlas->EnsureTextureCreated();
invAtlasSize = 1.0f / fontAtlas->GetSize();
if (fontAtlas)
{
fontAtlas->EnsureTextureCreated();
invAtlasSize = 1.0f / fontAtlas->GetSize();
}
else
{
invAtlasSize = 1.0f;
}
// Setup material
drawChunk.Material = Content::CreateVirtualAsset<MaterialInstance>();